spring - PostgreSQL hibernate 和 Spring

Question

我正在尝试将 Hibernate 与 Spring 和 PostgreSQL 一起使用，但我遇到了很多错误，例如:

org.postgresql.Driver   : Connection error 
ERROR 3424 --- [           main] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

我已将 postgreSQL.Driver 放入我的库中，但没有任何可做的错误提示。

编辑:

2018-03-19 15:54:53.660  INFO 7640 --- [           main] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2018-03-19 15:54:54.664  WARN 7640 --- [           main] unknown.jul.logger                       : ConnectException occurred while connecting to localhost:5432`
`at com.ttmik.back.MainKt.main(main.kt:19) ~[classes/:na]
2018-03-19 15:54:54.675 ERROR 7640 --- [           main] org.postgresql.Driver                    : Connection error:

org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

Answer 1

检查是否可以使用 telnet 访问您的 PostgreSQL。如果你得到类似的东西:

telnet localhost 5432
Connecting To localhost... 
Could not open connection to the host, on port 5432: Connection failed

然后很可能需要根据 this answer on serverfault 将 postgresql.conf 文件中的 listen_addresses 更改为 * .